Improvement in engine head-lights



s. M. DAVIES.

Locomotive Head Light.

Patnted Marc.h..28, 1.865,.

NITE STATES Arena FFICFQ S. M. DAVIES, OF CHICAGO, ILLINOIS.

Specification forming part of Letters Patent No. 46,998, dated March 28, 1865.

To all whom it may concern:

Be it known that I, S. M. DAVIES, of the city of Chicago, county of Cook, and State of lllinois, have invented a new and Improved Mode of Constructing Locomotive Head- Lights; and I do hereby declare that the fol lowing is a full and exact description thereof, reference being had to the accompanying drawings, and to letters of reference marked thereon.

The nature and object of my invention is to provide the oil-chamber of a locomotive headlight with a series of cones or semi-cones and i'rustums of cones or semifrustums of cones, so arranged, one within another, leaving a space between the two, through which the oil passes as it is fed to the light so as to afford a continuous and uniform flow of oil to the wicktube, notwithstanding the disturbing influences to the oil caused by the motion of the locomotive.

Figure l is a top view of the interior of the oil-chamber. Fig. 2 is a vertical section of the oil-chamber, taken through the line 00 x, Fig.1. Fig. 3 is a vertical longitudinal section of the same.

Similar letters of reference in the different figures refer to similar parts.

A A, Fig. 1, is the oil-chamber.

B is the wick-tube.

O is the oil-passage leading from the oileha-mber to the wiclctnbe.

D D D D are semi'cones cut longitudinally through the center and laid with the fiat surfaces down upon the bottom of the oilchamher and their bases adjacent to each other. The apexes of two of these cones are so laid upon the bottom of the oil-chamber as to unite at o.

H H H H are a series of semi-frustums of cones, constructed in similar style with D D, but with a broader base. These semi-frus tums of cones H H H H are placed immediately over the semi-cones D D D D, and, having a broader base, a space, 70 k 70 7c, is left surrounding the semi-cones D D D D.

E is where the passages 7c 70 la la unite in one and connect with the oil-passage O, which leads to the wick-tube B. The position and location of the oil-passage O is more distinctly shown at C, Fig. 2. The cones D D D D and the frustums of cones H H H H need not from necessity be halves of each, but may be entire and located as shown at the red dotted lines R B, Fig. 3, the lower halves extendin g below the bottom of the oil-chamber.

The operation of my invention is as follows: The oil is placed in the oil-chamber A A. At F the passages k 70 70 7c unite with the interior of the oil-chamber. This admits of a free passage of the oil into the passages k [ck k, through which it passes, and at E it passes into the oil passage (3, which carries it into the wick tube B, where it is evenly and uniformly fed to the wick. The use and combination of the cones or semicones D D D D with the frustums of cones or semi-frustums of cones H H H H, as shown, insures a uniform flow of oil to the wick-tube.

I do not claim the use and employment of serpentine or zigzag tubes. They are shown and claimed by Thomas Newla-nd.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The use and employment of the semicones D D D D, for the purposeand in the manner described.

2. The use and the employment of the semifrustums of cones H H H H, in the manner and for the purpose described.

3. The combination of semi cones D D D D with the semi-frustums of cones H H H H,in the manner and for the purpose described.

S. M. DAVIES.

Vitnesses J. A. OoWLEs, CAROL GAYTES. 

